Cleaning up after ourselves wherever we go and having a penchant for not littering are some of the habits Singaporeans are known for. And apparently, we bring this good practice with us whenever we travel overseas too, according to one homestay operator in Johor Bahru. In an Instagram video on Aug 31, a user known as Xiaoge gave a tour of one of the guesthouses he operates in JB, showing the aftermath of a booking by a group of Singaporeans. Speaking in mandarin, he starts off by introducing Singaporeans as "one of the highest spenders in the world", before saying: "Let's take a look at how messy it is after Singaporeans stay in a…